4-Methylisothiazol-5(4H)-one CAS 875583-03-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 875583-03-2 |
| Molecular Formula | C4H5NOS |
| Molecular Weight | 115.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Methylisothiazol-5(4H)-one (CAS 875583-03-2) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C4H5NOS. Molecular weight: 115.15 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C4H5NOS |
| Molecular Weight | 115.15 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Methylisothiazol Standards
- 5-Methylisothiazol-3(2H)-one (CAS 2825-29-8)
- 5-Methylisothiazol-3-amine (CAS 128146-85-0)
- 3-Methylisothiazol-4-amine (CAS 53483-97-9)
- 3-Methylisothiazol-5-amine (CAS 24340-76-9)
- 5-Methylisothiazol-4-amine (CAS 89281-43-6)
- N-Methylisothiazol-3-amine (CAS 68449-74-1)
- (3-Methylisothiazol-5-yl)methanol (CAS 17265-60-0)
- 1-(4-Methylisothiazol-5-yl)ethan-1-one (CAS 1524744-76-0)
Recommended Standards
- 4-Methoxythiazole (CAS 69096-72-6)
- 5-(Methylsulfanyl)-1,2-oxazole (CAS 68289-72-5)
- 4-Fluorocyclohex-3-en-1-amine (CAS 675112-72-8)
- 2-Thia-1,3,7-triazaspiro[4.5]decane 2,2-dioxide (CAS 1779744-63-6)
- 1-(4-Fluorophenyl)-5-methyl-N-(thiazol-2-yl)-1H-1,2,3-triazole-4-carboxamide (CAS 915874-77-0)
- N-Benzyl-1-cyano-N-methylmethanesulfonamide (CAS 220017-86-7)
- [9,9'-Bianthracene]-10-carbonitrile (CAS 103266-00-8)
- 1-(tert-Butoxycarbonyl)-3-isopropyl-2-piperidinecarboxylic acid (CAS 1622890-02-1)
- 2-(2-Nitrophenyl)acetamide (CAS 31142-60-6)
- Sperm Activating Peptide, Sea Urchin (CAS 140653-27-6)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com